Kelvin Guides d'étude, Notes de cours & Résumés

A student focuses sunlight to a point with a thin converging (convex) lens. Which of these direct measurements can the student make as a result of this experiment? A) The approximate focal length of the lens. B) The approximate wavelength of the light used. C) The approximate speed of light. D) The approximate index of refraction of the lens material. Answer - A) Approximate focal length of lens The bending of a wave around an obstacle is known as A. diffraction. B. deflection. C. refract...

Boyle's Law (Think of water boiling, P&V inversely related) CORRECT ANSWER-A law stating that the pressure of a given mass of an ideal gas is inversely proportional to its volume at a constant temperature. P1V1=P2V2 Bubbles get bigger as you get closer to the surface Pressure and volume are inversely proportional Dalton's Law (Taking a p...*PP) - Law of Partial Pressures CORRECT ANSWER-the statement that the total pressure of a mixture of gases is equal to the sum of the partial pres...

Wind Power Science Olympiad Latest Version Rated A+ Solar Power Converts sunlight to energy using photovoltaic cells. Expensive and unreliable in non-ideal weather conditions. Wind Power Uses turbines to generate energy. Unsightly and unreliable in high temperatures. Hydroelectric Power Converts movement of water into energy, usually with turbines. Creates reservoirs which cause issues. Tidal Power Type of hydroelectric power that uses the movement of water caused by tides...

ASTRO 7N Exam 2 Question and answers rated A+ 2024 ASTRO 7N Exam 2 Sun's composition - correct answer Composed mostly of gas - hydrogen (73% by mass) and helium (25% by mass)` Sun's stability - correct answer Stable due to balance of gravity (inward force) and gas pressure in its hot interior (outward force) Sun's gas pressure - correct answer Gas pressure provided by nuclear fusion reactions in the Sun's core, going on at a temperature of 15 million degrees Kelvin Sun's diam...

Which gas law states: temperature and pressure are directly proportional? Select one: a. Boyle’s b. Charles’s c. Avogadro’s d. Gay-Lussac’s In general, for a gas at a constant volume: Select one: a. The pressure of the gas is directly proportional to its temperature in Kelvin. b. The volume of the gas is directly proportional to its temperature in Celsius. c. The pressure of the gas is inversely proportional to its temperature in Kelvin. d. The volume of the gas is inversely p...

Chapter 01 - Chemistry: The Study of Change Multiple Choice Questions 1. A tentative explanation for a set of observations that can be tested by further experimentation is referred to as A. a hypothesis. B. a law. C. a theory. D. none of the above. Bloom's Level: 2. Understand Difficulty: Easy Gradable: automatic Section: 01.03 Subtopic: Scientific Method Topic: Study of Chemistry 2. A concise verbal or mathematical statement of a relationship between phenomena that is always the sa...

A student focuses sunlight to a point with a thin converging (convex) lens. Which of these direct measurements can the student make as a result of this experiment? A) The approximate focal length of the lens. B) The approximate wavelength of the light used. C) The approximate speed of light. D) The approximate index of refraction of the lens material. CORRECT ANSWER A) Approximate focal length of lens The bending of a wave around an obstacle is known as A. diffraction. B. deflection. C. r...

Proteins - necessary for body's maintenance, growth, and repair (GS) Carbohydrates and Fats - used primarily for energy (GS) 212 - Water boils at ____ degrees fahrenheit (GS) 100 - Water boils at ____ degrees Celsius (GS) 373 - Water boils at ____ Ks on the Kelvin scale (GS) Veins - carry blood from capillaries toward the heart. (GS) Arteries - carry blood away from the heart. (GS) Ventricles - lower chamber of the heart (GS) Red Blood Cells - component of blood which carries oxygen (GS...

MRSO PREP Final Test Questions & Correct Revised Answers Zero Boil-Off - ANSWER : System that reduces/eliminates the need to recharge Helium in a magnet. Quench - ANSWER : Quickly eliminating the magnetic field. Not immediate, takes 3 to 5 minutes to completely eliminate magnetic field. Loud Noise as Helium rushes out of Quench Vent. Can cause crack in the wire (very costly to repair/replace). Ohm's Law - ANSWER : Resistance that is equal to Voltage divided by the amperage in a wir...

Physics correct answer: The science of space, time, matter, energy and their interactions at the most fundamental level. Time correct answer: Dimension that relates to when events occur. Matter correct answer: Anything that occupies space and has mass. Energy correct answer: The ability to do work Medical Radiations/Radiology correct answer: The application of different types of radiation to the diagnosis and treatment of disease. Radiation is the energy that is emitted and tr...